Add show line endings button to Settings UI (#55707)

This is following up from #39609 to add the line endings button setting
into settings ui.

Release Notes:

- Added the line endings button setting to settings ui.

crates/settings_ui/src/page_data.rs

@@ -3487,7 +3487,7 @@ fn search_and_files_page() -> SettingsPage {
 }
 
 fn window_and_layout_page() -> SettingsPage {
-    fn status_bar_section() -> [SettingsPageItem; 10] {
+    fn status_bar_section() -> [SettingsPageItem; 11] {
         [
             SettingsPageItem::SectionHeader("Status Bar"),
             SettingsPageItem::SettingItem(SettingItem {
@@ -3574,6 +3574,28 @@ fn window_and_layout_page() -> SettingsPage {
                 metadata: None,
                 files: USER,
             }),
+            SettingsPageItem::SettingItem(SettingItem {
+                title: "Line Endings Button",
+                description: "Show the active line endings button in the status bar.",
+                field: Box::new(SettingField {
+                    json_path: Some("status_bar.line_endings_button"),
+                    pick: |settings_content| {
+                        settings_content
+                            .status_bar
+                            .as_ref()?
+                            .line_endings_button
+                            .as_ref()
+                    },
+                    write: |settings_content, value, _| {
+                        settings_content
+                            .status_bar
+                            .get_or_insert_default()
+                            .line_endings_button = value;
+                    },
+                }),
+                metadata: None,
+                files: USER,
+            }),
             SettingsPageItem::SettingItem(SettingItem {
                 title: "Terminal Button",
                 description: "Show the terminal button in the status bar.",